April 12, 2008

Wireless network design is the process of generating a layout of hubs and links within an environment to ensure desired network availability and flow capacity. Designing a wireless network is quite different from a wire network design by taking advantage of some of the most advanced RF design kits and process technologies in the industry. Designs for wireless networks are based principally on projected subscriber density, desired coverage area, and traffic demand. Wireless design is one of the most challenging areas of electrical engineering, and the shortage of individuals who can address the issues of wireless design is expected to get worse over the next two decades.

Wireless communication networks are essential for providing communications for mobile users, and while radio communications are useful in providing good coverage over large areas, the data transfer rates achievable with it is limited compared to the data transfer rates achievable with fixed networks. Wireless is inherently a shared medium, and wireless bridging of ethernet connections between locations is particularly attractive, due to the cost savings. Wireless networks can be used to connect adjacent buildings together or create to a link between locations up to 10 miles apart. Wireless LANs can also extend the reach of the wired network, providing previously unavailable connectivity to that network. Wireless LANs are especially ideal to implement in office buildings, manufacturing floors, health care centers, or campuses, and they can be adapted to both indoor and outdoor environments. In instances where wiring is not an option, wireless LAN implementations can also be used in buildings such as historical structures, open space floors, or buildings with sealed rooms. Wireless LAN systems from can usually be installed in one day, and integrate seamlessly into the existing networks. Wireless networks will form virtual offices anywhere in the world and wireless video will can create remote classrooms, remote training facilities, and remote hospitals anywhere in the world. Wireless technology will also enables developing countries to build up their communications networks quickly and cheaply, bypassing the high cost and delays associated with building wired infrastructures.

Designing a wireless communications system depends on using a complex set of engineering analysis that requires significant expertise and experience in radio frequency communications and networking, in addition to an in depth knowledge of the application requirements. Designing the wireless network is important to ensure configurations are setup correctly for wireless traffic to efficiently travel over the wired network. Design and integration of the wireless network and into the wired network is very important to maintaining the overall reliability of the network.

Traditional wireless network design are based on the utilization of a single Home Location Register (HLR) for each wireless network, but growth considerations are prompting consideration for multiple HLR topologies. One of the major challenges for the wireless network design is the efficient mobility management, which can be addressed both globally and locally. The best way to properly implement wireless network design is to fully understand its balancing, coverage, and capacity. As time goes on, more and more wireless designs are beginning to come into the market due to growing consumer demand for a wire-free life.

There are many benefits to be gained from having a wireless network. Certainly one of the biggest benefits to those business people on the move all the time is that they can easily gain access to their emails whilst they are waiting for a flight or a train. But it is also great for those who work from home as no longer do they need to restrict themselves to be sat at a desk instead if they want they can go and sit outside in the sunshine and do their work. However there are going to be times when a problem occurs with the network and this can be extremely infuriating. So what can one do to fix a wireless network problem?

Below we provide you with a few steps which should hopefully help to fix your wireless network problem without having to resort to getting a professional in. Often the problem can be quite easily resolved by just going into the network settings on your laptop or PC and simply following the instructions provided to you reconnecting to the network should be easy.

However it is important that before you actually try to rectify the problem that has occurred you should only arrange to make one change at a time. In most cases if you choose to change several settings at once and then reboot the laptop in all likelihood the changes you have made will have no effect and the problem will still be there. But by doing the changes one at a time you will be able to work out what is actually working for you and what isn't.The first thing that you should be doing before you actually try to reconnect to the wireless network at any time when you lose connection is to check to make sure that your laptop has a wireless adapter. Luckily in most cases today many of the latest laptops and notebooks will have their adapter internally installed. But if it isn't then you will often find it has an external adapter instead.

In order to carry out any repair the first thing that you should do is check to see if you are actually receiving a signal. With a large number of laptops, PC's and notebooks today you can get a software programs which not only tell you when connectivity has been lost but will also help you to re-establish it. All you need to do is click on the button which says reconnect to the wireless network and it will either connect you to the one you are currently on or it will connect you to one which actually has a much better signal.

However if you find that when you use the method above in order to fix a wireless network problem and it does not achieve your desired goal. Then you may find that the only way to regain connection is by actually rebooting your PC, laptop or notebook altogether.

There are a number of reasons as to why although your network adapter is connected to your laptop or notebook but on screen it is showing that it appears to be disconnected. In a large number of cases such a wireless network adapter can easily be resolved and generally with a few clicks of the mouse button you can be back online in a matter of minutes.

Below we take you through the steps that you will need to follow if you have a problem with the connection to your wireless adapter if you are running either Windows XP or Vista or your laptop or notebook or even on your PC.

Firstly we will take a look at the steps you need to carry out if you discover a problem with your wireless connection and you have Windows XP.

Step 1 – First you need to click on start and then click on the control panel icon. Step 2 – Now you need to double click on the icon that is entitled network connections and then right click on the icon called wireless network connection. When you get into this field you now need to click on the button called properties.Step 3 – In the properties section you now need to click on the wireless network tab and then click on available networks. Step 4 – Once you have access to the available networks you now need to click on the wireless network button and then the configure one. Step 4 – An authentication tab will now appear on the screen in front of you and you need to click on this to enable authentication to take place and check to see if the network check box has been selected. If not then you need to click on this twice.As for Windows Vista in order to rectify any kind of network adapter problem you need to follow step 1 and then these next few steps.

Step 1 – The same as for Windows XP.Step 2 – In the control panel section of the screen you now need to click on the Network and Internet icon and then click on the network and sharing center one. Step 3 – Then a further icon will appear in front of you called manage network connections and you need to click on this.Step 4 – Now you should right click the network which will then disable 802.1X authentication for. Once this has been done you then need to click on the button called properties. Then click on the security tab and then go to security type list and then click on the no authentication tab/button.

Hopefully using the above steps will then help to resolve the wireless network adapter problem that you may have. But the first thing that you should do prior to actually carrying out the steps mentioned above is to check to ensure that your adapter is actually connected properly to your laptop or notebook. Sometimes even if the external wireless network adapter has become slightly disconnected from your laptop can cause a problem with the signal and connection that you receive.

Introduction A router is a device which receives a data packet and then passes it on to another device via best path of its destination.

It is available in wired as well as in wireless models. Because of the tough competition in the market, it has become bit difficult to opt for the best wireless router. Therefore, you should always scrutinize the market properly before setting up a deal with any of the companies.

Working Of A Wireless Router The basic concept behind the working of the wireless router is to forward the data packets from a wireless network to the destination address by reading the received packets.

Various Types Of Wireless Routers The followings are the most popular wireless routers: 1. Linksys Wireless G Broadband Router and Belking Wireless G Router function in the similar manner. The wireless access point of these two routers lead to the connection of both the wireless G and wireless B connections. The wired Ethernet devices also get connected to the wireless network with the help of these routers. 2. Linksys Wireless B Broadband Router acts as a type of a splitter which splits the internet connection among the various computer systems that are present in the same vicinity. There is also a provision of communicating with each other within the same network with the help of this router. How To Choose The Best Wireless Router As discussed earlier that there a wide range of wireless routers available in the market, therefore you should consider the following steps in order to opt for the best one. 1. After getting a clear picture of its functioning, you should try to figure out your need so that you should be able to select the router which will satisfy all your requirements.

2. It is advisable to go through the reviews of the various customers either on the websites of the different companies which are into the service of providing wireless routers or by having a talk with the consumers directly. This practice will enable you to know the quality of the wireless routers along with the type of services provided by them.

3. It is also recommended to opt for the prestigious and renowned companies of wireless routers so that your huge investment should not get into drains.

4. After scrutinizing the various brands, the very next step is to get a comparative picture of its pricing, which can be easily done online or you can also visit the offices of the nearby retailers for the same.

5. You should always make sure before purchasing a wireless router that it should be compatible to your broadband internet connection as well as to your existing hardware else it will be of no use for you if it lacks compatibility.

6. The most significant feature of a wireless router which will assist you in opting for the best one is its speed. Because if you are looking for a router with an enormous speed of 108Mbit/s, then the right decision will be to go for a router with a "Turbo" mode.

Hence, you can choose the best wireless router by considering the above-mentioned guidelines.

The Windows 2000 Server operating system includes a time synchronisation service called w32time or Windows Time. The service is installed by default and runs continuously in the service list. The time service is required by the Kerberos authentication protocol to ensure all computers running in a Windows 2000 environment utilise a common shared time. This article describes how to set up and configure an Authoritative Time Server in a Windows 2000 Server environment. It also discusses the hierarchical relationship at the heart of the service and provides some configuration hints and tips.

The Windows Time Synchronisation Hierarchy The Windows 2000 time service utilises a hierarchical synchronisation structure: Desktop workstations and Member Servers nominate their domain controller as the source of time; Domain controllers nominate the PDC as their source of time synchronisation, but may also utilise a parent domain controller; PDC's follow the hierarchy of domains in the selection of their time synchronisation source.

In the hierarchy the PDC emulator in the forest root domain is the primary time reference for the organisation. The PDC in the forest root domain can have its internal reference clock controlled in a number of ways:

- By utilising it's own internal hardware system clock

- By synchronising to an Internet based NTP time server.

- By synchronising with a local intranet based NTP time server or hardware reference clock.

- By utilising a hardware reference clock.

Each of these methods of synchronisation described above raises a number of issues.A PDC utilising it's own internal unsynchronised hardware system clock will drift significantly over time, transactions cannot be referenced to a traceable source of time.

A PDC synchronising to an Internet based NTP time server can obtain accurate time. However, this raises security issues since the NTP port in the firewall must be left open for synchronisation. Also, Internet based NTP servers cannot provide authentication, so the source of time cannot be guaranteed.

Many of the above issues can be solved yy synchronising a PDC with a local intranet based NTP time server or hardware clock. A local NTP server or hardware clock has the advantage of providing a traceable time reference and also secure authentication.

The Windows 2000 Time Service Configuration.

Configuration of the Windows 2000 Time Service is carried out by editing registry entries. It is highly recommended that the registry be backed up before conducting any modifications. This allows the registry to be restored in the event of erroneous modification.

To configure the PDC master to utilise its internal system clock requires only that the W32Time registry entry HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesW32TimeConfigAnnounceFlags is set to "A". This makes the PDC announce itself as a reliable time source. However, the system clock can drift over time and is not referenced to an accurate time source. Additionally, Windows Time will periodically generate system event log warnings indicating that the PDC should be configured to synchronise to an external time source. This warning can be ignored.

To configure the PDC to to synchronise to an external time reference, a number of registry entries must be modified. The windows time service registry settings are stored in the registry at HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesW32TimeParameters.

The "Type", "Reliable Time Source" and "Local NTP" parameters must be set to the value "1". The "NTP Server" parameter must be set to a list of space delimited NTP server peers that the computer is to synchronise to. The "MaxAllowedClockErrInSecs" indicates the maximum number of seconds between the system time and received times that the received time is to be considered a valid new time. The "Period" parameter indicates the frequency with which the time service is to synchronise.

After the registry entries have been correctly modified, the Windows Time service must be stopped and restarted. At a command prompt enter "net stop w32time && net start w32time" to restart the service.

Hints and Tips.

The correct operation of the Windows Time service depends heavily on the correct functioning of network devices and infrastructure. Common problems such as TCP/IP connectivity, DNS resolution, inaccurate NTP time references and network delay can all cause problems with the synchronisation service. Additionally, when synchronising to an Internet NTP server, ensure that USP port 123 is open on the firewall. UDP port 123 is the port reserved for NTP communication packets.

Are you interested in setting up a wireless network at your house? It may be easier than you expect. More importantly, you may find that once you’ve gone wireless, you’ll enjoy your Internet experiences more. Depending on how you set up your system, you may have one wireless network, or you may end you with a different configuration. For instance, you might have Wireless Network A and Wireless Network B.

When you think of wireless, you may be thinking of WiFi. If your computer is WiFi enabled, then you can connect to the Internet via radio waves. Computers on the same network can use a Wireless LAN to connect several computers on the same network.

Although many people think of wireless networks as something new, they’ve actually been around since the Second World War. Information was quickly transferred between countries. Now people enjoy the convenience of wireless networks. You no longer have to deal with the cables, wires, and phone lines you used to need to access the Internet. Now all you need is a wireless-enabled computer, plus some additional equipment, and you’re set to go.

Of course, there are downsides to having a wireless network. Sometimes you’ll loose the signal, especially if something blocks the waves. In addition in cases of bad weather, you may be unable to use your system. Finally, wireless signals can pose security problems, so you may need to look into security options. You may find that the risk isn’t worth it and decide to stay with a wired connection. If you do decide to go wireless, you should consult a professional about what security options are available to minimize your risk.When it comes to going wireless in your house, explore your options. To build your own wireless network, you’re going to need a few things. For starters, you’ll need network adapters and access points. You’ll also need a router. Finally, you may need a signal booster.

The number of wireless network adapters you need depends on the number of computers you have. Each computer that will be accessing the wireless network will need an adapter. You may have seen the wireless adapters attached to laptops before. They look like cards stuck into the side of the laptop.

You also need an access point. The access point operates as the base station for your system. In addition to an access point, you may need a wireless router for your system.

When you’re serious about setting up a wireless network in your home or business, you need to talk to some experts. Many electronics stores have personnel who are trained to help consumers decide what they need to establish a wireless network in their home. Ask at your local store. You may be surprised at how easy it is to go wireless.

You’ve been slaving away on your homework or that business deal at home in your home office all day long. Wouldn’t it be nice if you could take your work with you the living room so that you can curl up on the sofa with your laptop on a lap desk? Or what about relaxing in the cool breeze of your back porch?

With the right wireless network adaptor, you can take a notebook computer and access the Internet anywhere in your home! Leave those old phone cords behind! This is the wireless age! Do you have kids who each have their own computers in their rooms? You can also connect all of the desktops in your home to the same high-speed Internet with one wireless connection.

All you need is a high-speed Internet connection and a wireless network adaptor. It’s not very complex at all to install a wireless network adaptor in your home—you won’t need to bring in an expert! And it can be very inexpensive to buy a wireless network adaptor, too!

Most wireless network adaptors are USB-compatible. All you do is have a high-speed Internet connected to one desktop computer in your home and then place the USB cord of your wireless network adaptor into a USB port on that desktop computer and a wireless PC card to receive the signals in the USB ports of every other computer. Voila! The wireless network adaptor draws its power from the desktop computer, whether it’s on or not, as long as it’s plugged in, and begins emitting signals throughout the house. The other desktop computers and all of the laptop computers in your home will need wireless adaptor cards, which are also typically just plugged into a USB port, to receive the signals. Now you have working high-speed Internet anywhere in the house!

The best part? Wireless network adaptors can be purchased for as little as $15! However, many others cost between $30-70 and some wireless network adaptors even costs hundreds of dollars.

The more data you need to transmit and download and the more computers you have using the wireless network adaptor’s signals, the higher quality wireless network adaptor you may need. However, there’s no need to spend an enormous amount of money unless you’re using the wireless network adaptor at a business.

You can try the Web site of your high-speed Internet provider or even the Web site of your computer manufacturer for a number of wireless network adaptors. Most wireless network adaptors are universal, however, so you can find great deals at electronics specialists online or at electronics stores. Try Best Buy, Circuit City, or even Amazon.com.

Having the freedom to roam your house while working makes work feel like less of a chore. You don’t have to be "chained" to as desk anymore! Buy a wireless network adaptor and consider yourself free of wires and chains!

A network card is used to communicate between two or more networks. As the name suggests, wireless network cards allow different networks to communicate with each other, wirelessly. Wireless network card installation varies according to the type of network card used. Let's discuss this further.

A small piece of hardware, wireless network cards are broadly of two types. Traditional PCI (Peripheral Component Interconnect) cards and USB (Universal Serial Bus) cards are two different types of network cards. The conventional PCI cards are slightly difficult to install as compared to the USB cards.

Apart from these, there also exist PCMCIA cards which are typically for the use in notebooks and laptops. Also, there is a media adapter which is used to make a Wi-Fi wireless connection. It inserts into the Ethernet port of Xbox and Playstation.

Basically, for every type of wireless network card installation you need to follow two steps. The first step is to connect the network card to the computer. The second step is to install the necessary software associated with the network card. The detailed description of a wireless network card installation is given below.The installation of a USB network card is easy. That is why a large percentage of people prefer it. So we will cite the USB wireless network card installation process first. Simply plug the USB card into the empty USB slot of your computer. Windows will automatically detect it and will install the required software/drivers.

Else, you can insert the compact disk into the CD-ROM drive. Then you have to give its path on the dialog menu popped by Windows. After the installation has completed, Windows will notify you that the new hardware is successfully installed and is available for use.

In case of a PCI card, first you will have to switch the power off your computer. Then, you have to open the computer case and connect the card in the empty PCI slot. When this is done, you have to close the computer case and power on the PC. Windows will detect a new hardware and will try to install the needed drivers/software for it.

If it finds them, then you will be prompted to use the network card. Else, you may have to install the drivers yourself by the same procedure followed in the USB wireless network card installation.

The quality of the network card is one of the crucial factors which determine the strength of a wireless network. Hence, it is important to make sure that you purchase the best wireless network card. You can choose an established manufacturer for guaranteed strong wireless network.

Wireless network card installation is not required in the new laptops and notebooks, as they are in-built and ready to be used. Remember to ensure that the firewall allows the card to detect and access other wireless networks. Now go ahead with confidence.

In the information age the important concern for human beings is related to environment protection. The need of the hour also implicates that every items and subjects we used in betterment of our life has some good or bad consequences on the environment. Computers could not be excluded from such category. After a long use of computers when the time comes for disposal we just throw it away which do nothing good to environment except as a non biodegradable waste. These non degradable wastes add to the woe of climate changes. Here we need green computing which is environment friendly. Green computing is all about the efficient use of computers and computing. The whole concept is to make computers friendlier to the environment, economy and society. Earlier computers are made considering the economic viability to the buyer. But in green computing manufacturers must consider the social responsibility and the impact of the environment apart from the economic viability before create computers. This way a computer could be disposable or recycled after it is used for a specific time period. The concept is to convert the use, creation and end of computers more eco friendly from beginning to end. Another aspect of green computing is how we use it which determines the amount of energy we spend on it. Many a time we leave the monitor or computer without turning it off. The result is we end up in using extra energy which we could save if turn it off when it is not in use.For green computing the need is to create efficient systems those will implement all factors which would be environment friendly. It could be achieved if the hardware’s life is extended, its maintenance cost reduced and recycling of the waste computer easier than earlier. This will have little impact on the environment in a negative way which is the basic goal of the green computing. As a result of global warming and consumer awareness PC manufacturers giving importance to this aspect of computer manufacture. These eco-friendly computers would use less electricity and are made of recycled steel, aluminum or plastic. The screen and key boards could also be made of such recycled substances. The emission of any hazardous gas could then be stopped by using such eco-friendly computers which also looks like a fashionable. The making of green PCs would be a vital step towards tackling the climate change.

Years ago, when personal computer systems for homes were relatively new, most people didn't think much about any home computer system network. A PC and a printer -- that was about it in those days. But times have changed -- today there is a much greater need for sophisticated home computer networks: many more devices are being interconnected, sophisticated ones -- such as flatbed scanners, laser printers, and fax machines.

All of this has made it imperative to install an up-to-date cat 5 cable network. Of course, many people are already familiar with cat 5 cables -- typically a computer owner will have one or more cat 5 patch cables already in use, for connecting their computing devices together over short distances. It comes as a surprise to many computer owners to find out that they do not need to purchase pre-made cat 5 patch cables -- with just a little instruction and some inexpensive materials, anyone can learn to make their own.

Of course one of the materials you will need to have on hand if you are doing your own cat 5 cable wiring is a good supply of cat 5 connectors. These are simply attached to each end of the cable, and allow for a quick connect or disconnect of the cable from various computer devices. These are actually called 8P8C connectors, and look just like the kinds of connectors used with telephones, just smaller. Learning how to attach these cat 5 connectors properly is a bit tricky, but you don't have to be a technician to learn how to do it properly.As your home computer network grows in complexity, you may reach a point where you will need a cat 5 splitter. These are devices that will split -- divide -- the cat 5 cable wiring signal among different devices, so that each can operate properly. With a cat 5 splitter, you can control anywhere from two or three, up to a dozen, computing devices on the same network.

One of the simplest computer networking arrangements would be to connect one computer directly with another. Normally, to do this you would need to use a network hub or switch. But if you want to save money, you can purchase a cat 5 crossover cable -- this properly switches the signal transmissions (the same way a network hub or switch would) so that both devices can communicate with each other directly. 5 crossover cables are generally no more expensive to purchase than other types of cat 5 patch cables.

It may also interest you to know that even if you not have cat 5 cable wiring in your home, you may already have something similar, if you have an older computer network or a standard 2-line phone system. These older computer networks and telephone systems make use of an earlier generation of cable -- cat 3 cable. 3 cable is no longer used for newer home computer networking installations; in fact cat 5 cable has been superseded by an enhanced cable -- called cat 5e -- that provides superior signal quality and faster transmission speeds.

There is much information available on the Internet today regarding cat 5 cable wiring and networking -- if you will take the time to read up on this subject, you will be able to handle this job yourself and avoid possible pitfalls. In no time at all, your new high-speed computer network will be operational -- and your be proud to say that you did all the work yourself!

Tredent Data Systems, Inc., the leader in wide are networking, today announced that they have selected Riverbed's Steelhead platform, a highly scalable WAN acceleration solution, for a new Managed WAN Acceleration Service or Solution as a Service (SaaS). Riverbed's high-performance Steelhead platform enables Tredent's professional services staff to fine-tune network performance to improve application delivery and reduce bottlenecks. Tredent's new Managed WAN Acceleration Service, which relies on Riverbed's Steelhead platform, can help distributed enterprises to accelerate application delivery over the WAN, leverage WAN investments and boost user productivity.

"We chose Riverbed Technology's high-performance Steelhead platform for our Managed WAN Acceleration Service because it enhances application visibility and improves application response time and WAN efficiency," said Charles Beck, vice president of sales at Tredent Data Systems, Inc. "Riverbed is helping us to deliver on our commitment to offer a world-class experience to our business customers. Their platform offers significant scalability which is enabling us to meet the needs of our multinational customers."

The Steelhead platform improves application performance over the WAN by recognizing and eliminating redundant transmissions; accelerating TCP and application-specific protocols; prioritizing and allocating access to bandwidth; and ensuring high application availability at locations with various WAN connections. The Steelhead application acceleration platforms work end-to-end with a multitude of applications, including Web-based (HTTP,HTTPS,FTP,SSL, etc), client-server (CIFS, MAPI, SQL, Oracle, Email), custom software, voice and video. The platforms also include a broad set of management tools for monitoring and reporting on WAN optimization and application acceleration performance.The new Managed WAN Acceleration Service (SaaS) offering will allow Tredent's customers take advantage of the business enhancements that WAN optimization and application acceleration bring to corporate networks without having the huge capital outlay that normally comes with deploying an enterprise wide WAN acceleration solution. This approach is allowing more businesses to take advantage of WAN optimization technology in their environment while only needing to make low monthly payments during the term of the service. "Most customers are choosing to make the term of the new Managed WAN Acceleration Service (SaaS) offering match that of their current WAN circuit contract so that they can make a decision on new technology or upgrades to existing technology when they are considering the renewal of their circuit contract" said Justin Lofton, senior systems engineer at Tredent Data Systems, Inc.

About Tredent Data Systems, Inc.

Tredent Data Systems, Inc. is a leading provider of systems integration solutions and services to medium and large business customers worldwide. Combining unsurpassed customer service with advanced technology and professional service capabilities, Tredent Data Systems, Inc. delivers innovative and unique business solutions to customers around the world. For more information, visit www.tredent.com.

About Riverbed's Steelhead Appliances

Riverbed's WDS solutions enable organizations with more than one office to overcome a host of severe problems, including poor application performance and insufficient bandwidth at remote sites. By speeding the performance of applications between distributed sites by five to 50 times and in some cases up to 100 times between enterprise data centers and remote offices, Riverbed's award-winning Steelhead WDS appliances enable companies to consolidate IT, improve backup and replication processes to ensure data integrity, and improve staff productivity and collaboration. Steelhead appliances have been deployed in organizations ranging from the world's largest corporations with offices around the globe to small companies with a couple of sites that are just miles apart.

About Riverbed

Riverbed Technology is the performance leader in wide-area data services (WDS) solutions for companies worldwide. By enabling application performance over the wide area network (WAN) that is orders of magnitude faster than what users experience today, Riverbed is changing the way people work, and enabling a distributed workforce that can collaborate as if they were local. Additional information about Riverbed (Nasdaq:RVBD) is available at www.riverbed.com.

Riverbed Technology, Riverbed, Steelhead, RiOS, Interceptor, and the Riverbed logo are trademarks or registered trademarks of Riverbed Technology, Inc. All other trademarks used or mentioned herein belong to their respective owners.

Networking concept is widely used in various fields and technologies. Network is an arrangement of intersection horizontal and vertical lines like a structure of a net. A group of points are integrated for various reasons. This concept has been implemented in all technologies. The technologies such as computer systems, telecommunication, mobile cell, information, television, radio, internet, intranet, extranet are advanced because they adopted integration.

The computer systems are most powerful machines in the present world that can be networked in different environment in different situations. Networking in the field of computing is the practice of linking computers together to support digital communication among them. Local Area Network (LAN), Wide Area Network (WAN), Metropolitan Area Networks (MAN), Wireless LAN, Intranet, Internet, and extranet. The client-to-client and server-to-client technology are the basic concept of advanced computer network. As a result, a chain of interconnected computers machines or operations are taken place. Computer networking companies manufacturing network devices for establishing robust networking. The research and development on the technologies create demand of network hardware and devices. Wireless networking and virtual networking is the latest network technologies are going to provide better services to the world.

Intranet runs under one server and many client computers for limited people with security control. For an example, employees of a company can access a network for the internal communications. Extranet is such kind of networking environment that can be shared between more than one group for sharing and communications. The extranet is also security controlled for certain groups. Internet is a world wide network that connects millions of computers around the world. The internet also runs under secure socket level (SSL). The finance, banking, shopping companies run in internet under security level for reliance. Besides wireless, virtual networking is an advanced networking technology helps people. Virtual Private Network (VPN) is private network in excess public infrastructure. Generally, VPN set up in homes and workplaces of employees for safely log into company networks. VPN is one of the convenient ways to stay connected to the corporate intranet for telecommuters. This network can be found in workplaces, homes and mobile places. Telecommuters travel and find a VPN a more convenient way to stay connected to the corporate intranet. A VPN supplies network connectivity over a possibly long physical distance. In this respect, a VPN is a form of WAN. This VPN has interesting aspects of network protocol design, network service outsourcing, Internet security, and technology standards.

Mobile network provides mobile communications under Wire Less Program (WAP) technology. Certain networks control base transmission stations and links other networks for wide mobile services. Television or radio like wireless network is a group of broadcasting stations connected for a simultaneous broadcast of a program.

We are one of the solution providers for all on-demand networking sectors to meet demand in cutting edge technologies. We provide end to end networking solutions that customers need to build an infrastructure of their own. We offer consultancy, design and installation for networking based infrastructures.

Structured Cabling is our specialization in computer and other environments as well. Our extensive experience in voice and data networks i.e. Cat5e, Cat6 or fiber that means our ideally placed to deliver a solution to best meet your needs. We provide LAN, WAN and Wireless LAN with highly security provisions. We offer the latest in the field from wireless LAN to wireless WAN and personal area networks.

With the development of wireless networks this means that no matter where you are as long as you are in contact with a hotspot you can check your emails or surf the net wherever and whenever you want. However although it is a great system it can have its problems also and one of the most common ones faced is a loss of internet connection. In this article, we will go through some of the stages that will help to fix a wireless network connection when it suffers a problem.

In many cases because when you are out and about with your laptop you will not actually have access to the hardware for the network you are connected to. Therefore, the only way you will be able to rectify this connection problem is with your laptop itself. Generally, within a matter of minutes you will be able to get the connection back that you have just loss.

However it is important to remember that when ever you are trying to rectify a fault on your laptop or PC and not just the network connection you do it one step at the time. You also only make one change at the time on it or you could end up in a much more serious position than you are in currently. Also by changing, things one at a time it actually helps you to quickly discover what works and what does not. This you can then note down and use in the future if you need to.

Step 1 – You know that you have the right hardware installed on your PC or laptop in order to connect to the internet but you can not actually work out why it is not connecting. What you need to do is go into the control panel on your PC or laptop and then go into network connections.Step 2 – Upon doing this you will be shown a window on the screen in front of you, which shows you the possible network connections that are available for your laptop or PC. On this screen, you will see an icon saying wireless network you need to move the cursor over this and right click on your mouse. A list of different options will come up and you need to highlight and then click on properties.

Step 3 – If all seems okay then you need to come out of here and then click on the icon again with the right button of the mouse and this time select repair. What this does is actually severs any connection you may currently have with the network and will then try to re-establish it once more. The connection it makes will either be to the current network you have been using or to one which has much better connectivity.

However when it comes to a person trying to fix wireless network connection if they discover that this does not rectify the situation the only other choice they may initially is to actually reboot their PC or laptop. But you don't need to shut your machine off completely all you need to do is restart it and hopefully you may find that this is all it takes in order to rectify the problem.

Remote monitoring allows you to make huge cost savings by reducing or even eliminating the need for on-site security personnel. It also allows you to provide the 24/7 authentication required for Police response to intruder situations.

Whether CCTV is installed secretly or openly, modern digital communication technology enables SMS to monitor the situation anywhere in the world. Using telemetry, control can be maintained over cameras, lights, gates indeed any building management function.

CCTV monitoring falls into two categories, reactive or proactive and both require a different level of service.

Reactive CCTV monitoring involves alarm detection on site which initiates a picture transmission to the monitoring centre. Depending on the requirements and the situation the alarm is dispatched to a response agency.

Proactive monitoring is real time, for example city centre or high street locations. In this instance the operator is constantly reviewing the location and informing security or the emergency services to dangerous situations.In both types of monitoring there is recorded evidence of what was seen and often this is used to assist the police in their enquiries. Historical evidence is used to supplement non related incidents, enabling the police to build a case.

CCTV in the public sector is governed by the data protection act and the human rights act, it is there to protect the benefit of the public not to spy on them.

CCTV is also used to supplement intruder alarm systems to provide confirmation that there is someone on site and that the alarm received is not false.

All Coverer’s Remote Monitoring service give you peace of mind that your critical network devices such as your servers, routers, firewall and network services such as email, web and backup are running smoothly.

Remote network monitoring allows All Covered to anticipate or identify issues before they become major problems. Real-time reports and a status dashboard help pinpoint the problem areas immediately.

Network Operations Center (NOC) monitors your network devices 24 x 7 and if there is an alert, they will quickly determine if the issue is merely a warning or false positive, or if it warrants remote support from Client Support Center (CSC) or an onsite visit by your consultant. Business impact rules are determined with you in advance for each device or service being monitored, so All Covered knows how you would like us to resolve an issue – 24 x 7, the next business day, our next on-site visit or any other interval.

If Remote Support is required, the CSC engineer is equipped to handle the issue using state-of-the-art tools and our network guidebook documentation. Remote Computer Support System allows the CSC engineer or consultants securely log into the server, pinpoints the problem and resolve it remotely. The service is convenient and provides a fast response because support can be done 24 x 7 without intervention on your part or disruption to you.

Remote Monitoring (RMON) is a standard monitoring specification that enables various network monitors and console systems to exchange network-monitoring data. RMON provides network administrators with more freedom in selecting network-monitoring probes and consoles with features that meet their particular networking needs.

The RMON specification defines a set of statistics and functions that can be exchanged between RMON-compliant console managers and network probes. As such, RMON provides network administrators with comprehensive network-fault diagnosis, planning, and performance-tuning information.

RMON was defined by the user community with the help of the Internet Engineering Task Force (IETF). It became a proposed standard in 1992 as RFC 1271 (for Ethernet). RMON then became a draft standard in 1995 as RFC 1757, effectively obsoleting RFC 1271.